Limekiln.



No. 693,599. Patnt ed Feb. [8, I902.

W. GLEASONM LIMEKILN.

V (Application filed May 4, 1901.: (No Model.) 3 She'eis$heet l.

11V VEN TOR No. 693,599. Patented Feb. 18, I902.

W. GLEASDN.

LIMEKILN.

(Application fllad my 4, 1901.1 7 (No Model.) 3 Sheets-Sheet 2.

ENTOR WITNES n45 upRR s PEY Newm n. c. I

No. 693.599 Patented Feb. l8, I902.

W. GLEASON.

LIMEKILN.

(Application filed May-4. 1901.)

(No Model.) 3 Shaets-Sheet -3.

lllh rllll WI ESSES' I [NVENTOR I 5 v Atlo'mey Nrrnn Sterne PATENTrrrcn,

\VILLIAM GLEASON, OF SOUTH GLENS FALLS, NElV YORK.

LllVlEKlLN.

SPECIFICATION forming part of Letters latent No. 693,599, dated February18, 1902.

Application filed May 4,1901. Serial No. 58,768. tNo model.)

To ctZZ whom it may concern:

Be it known that I, WILLIAM Gnnnsox, a resident of South Glens Falls, inthe county of Saratoga and State of New York, have invented certain newand usefullmprovements in Limekilns; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to whichit appertains tomake and use the same.

My invention relates to an improvement in limekilns, an object of theinvention being to provide an improved kiln of this character in whichoil will be injected into the same by steam and burned therein.

A further object is to provide an oil-burning kiln with improvedwater-lined burnertubes.

A further object is to provide a limekiln into which oil will beinjected by steam into all sides thereof to completely burn all thecontents thereof.

A further object is to provide an improved 'limekiln which will besimple in construction, comparatively cheap to manufacture and operate,and which will most effectually and rapidly burn all of the rock.

With these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, aud pointed out in the claims.

In the accompanying drawings, Figure 1 is a view illustrating myimprovements. Fig. 2 is a View in longitudinal section of the same. Fig.3 is a view in section taken at right angles to Fig. 2, and Figs. 4 and5 are views of details of construction.

1 represents the base or foundation of the kiln, which is composed ofbrick or masonry and has built thereon the approximately rectangularbody 2, composed of outer or main walls of stone and inner walls orcoatings of fire-brick 3. The front wall of the kiln is provided with anarched opening to receive therein a boiler 4., hereinafter referred to.

A suitable draw-hole and door 22 therefor are provided in the front wallof the kiln, at the bottom thereof, for the removal of lime, and Ipreferably employ in front of this door a suitable screen (not shown)over which the lime must be drawn to sift the same simultaneously withits removal from the kiln. The upper end of the kiln is made with aninternal support for the removable cap-ring 23, on which is-supportedthe approximately conical metal combustion chamber and smoke-stack 24,and the bottom of the kiln is made with inclined sides and rear end 25to form a hopper or trough and direct the burnt lime to the center,where it can be readily removed through the draw-hole.

Pockets are formed in all four corners of the kiln, between its ends,for the reception of water-boxes 5, which are composed, preferably, ofmetal and comprise top and bottom plates, a rear plate 5, conforming inshape to that of the pocket and projecting across the opening in theinner Wall of the kiln, and an outer plate 5", approximately parallelwith the inner plate. The boxes 5 are provided on their side edges withflanges 6, overlapping the walls of the kiln, and said flanged portionsare made with perforated lugs 7 to receive rods 8, headed at one end andscrewt-hreaded at their other ends for the reception of nuts 9 to securethe boxes in the pockets. The boxes 5 are provided with tubular centralportions 10 and are connected in circuit by pipes 11, with one of whichan inlet-pipe 12 communicates and is adapted to connect the boxes with awater-pump, reservoir, or other source of supply, so as to maintain asupply of cold water to the boxes, and a suitable outlet-pipe 13communicates with one of the pipes 11 to carry off the water and makeroom for the incoming freshsupply and maintain the tubes 10 at all timescool.

The boiler 4-, above referred to, is constructed to fit into the archedopening in the front wall of the kiln and is made in any desired mannerand of a strength in excess of that required to insure safety, and thedome 14 of the boiler is connected by a T-coupling 15 with pipes 16 andthe latter with injectors 17, having burner-tubes 17, projecting intothe tubular portions 10 of boxes 5 by short pipes 18, having suitablecouplings 19 to permit the disconnection of the parts when desired. Theends of pipes 16 where they terminate in the injectors project beyondoil-inlets 19 and are contracted to eject the steam in a small streamand inject the oil through burner-tubes 17 into the kiln. The oil-inletsare disposed at an angle to the steam-pipes, and oil is supplied theretoby pipes 20, connected with any suitable oil reservoir or pump, (notshown,) and suitable valves are provided in said pipes to regulate thefeed to the injectors.

The operation of my improvements is as follows: The boiler 5 is heatedby the intense heat of the kiln to make steam, which latter is conveyedto the injectors 17 by pipes 16 and 18, and the oil is conveyed to theinjectors 17 bythe pipes 20, as above explained,and is forced into thekiln by the steam and burned in all four corners thereof. Thewater-boxes lbeing maintained cool by the constant supply of cold watermaintains the burner-tubes 17 cool and prevents any damage thereto bythe intense heat of the kiln, thereby length- 7 ening the life of thetubes for an indefinite period and insuring the perfect operation of theburners.

By locating the burners in all four corners of the kiln I am enabled toburn all the rock and remedy a defect which has existed in kilns of thischaracter heretofore known, wherein the corners were the most dormantpart thereof and in which it was extremely diflicult, if not quiteimpossible, to burn all the rock, an unnecessary amount of fuel beingexpended in order to get a small quantity into the corners. With myimprovements every part of the kiln is maintained at an intense heat,and by distributing the burners as I have I am enabled to economize fueland to obtain better results than heretofore.

If desired, the Water after passing through the boxes 4 and becomingheated by its close contact with the kiln may be utilized as feedwaterfor the boiler and may be returned to the boxes after being cooled inthe event of the failure for any reason of the main watersupply. Infact, by constructing a kiln as above described the water, oil, andsteam can be most economically employed by various slight changes, whichwould readily suggest themselves, according to the location of the kilnand the facilities for operating the same, and various changes might bemade in the general form and arrangement of the several parts describedwithout departing from the spirit and scope of my invention, and hence Ido not wish to limit myself to the precise details set forth, butconsider myself at liberty to make such slight changes and alterationsas fairly fall within the spirit and scope ofany invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with an angular kiln having a series of radialopenings in its corners, a series of injectors projecting into saidopenings so as to all discharge toward the cenfor supplying oil to theinjectors, a boiler located in one wall of the kiln and heated therebyand steam-pipes connecting the boiler and injectors.

4. The combination with a kiln, of a waterjacketed burner-tube in saidkiln, means for permitting a'continuous flow of water through thejacket, and means for supplying oil to the burner.

5. The combination with an angular kiln, of Water-boxes in the cornersthereof, supply and escape pipes connecting said boxes, and burner-tubesprojecting through said boxes.

' 6. The combination with an angular kiln, of water-boxes in the cornersthereof, supply and escape pipes connecting said boxes, injectors,burner-tubes communicating with the injectors and projecting through thewater-boxes, and oil-supply devices for said injectors, a boiler in thewall of the kiln and steam connection between the boiler and injectors.

7. Ina kiln, the combination with an outer wall of stone, and an innerwall of fire-brick terminating near the top of the stone Wall, of acap-ring on the top of the brick Wall, an approximately conicalcombustion-chamber and smoke-stack on said ring, a trough-shaped bottomin said kiln and a draw-hole door in the front of the kiln at the bottomthereof to permit the removal of the lime.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

' \VILLIAM GLEASON. \Vitnesses:

W. H. SCOTT, GERTRUDE M. CALLEN.

ICC

